config: Fix typo in logger name
ext: Split load into load+validate
ext: Register ext's GStreamer elements
ext: Remove filter_enabled_extensions
Merge pull request #416 from jodal/feature/split-ext-load-steps

Split extension load steps
Merge branch 'develop' into feature/config-api-cleanup

Conflicts:
	mopidy/__main__.py
	mopidy/ext.py